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  <title>Document</title>
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  <script>
    function sort(arr) {
      for (var i=1; i < arr.length; i++) {
        for (var j=0; j < arr.length-i; j++) {
          if (arr[j] > arr[j+1]) {
            var temp = arr[j];
            arr[j] = arr[j+1];
            arr[j+1] = temp;
          }
        }
      }
      return arr;
    }
    console.log(sort([4324,5454,22,1,342,21]));
  </script>
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